Marinade the tri-tip in Traeger Regular BBQ sauce overnight in refrigerator. Remove tri-tip from marinade, and lightly season with Traeger Prime Rib Rub. Start your Traeger on smoke with lid open for 5 minutes to get started, then place tri-tip on grill for 4 to 5 hours on smoke.

Remove tri-tip from grill and place in aluminum foil foil with 1/2 cup water. Close aluminum foil and adjust digital controller to 350 degrees. Place back on the grill for 45 minutes. Remove from grill and let rest for 15 minutes. Eat and enjoy!